Tire for vehicle-wheels.



PATENTED JULY 4;., QOKL G, B. DRYDEN TME FUR VEHIGLE WHEELEL APPLIOATIONAILED JULY 8. 1904.

.lliltai 793.998.,

:mented July t, I QU l hitnni titten (HCURGE B. DRYDEN, Oli (HHCAGC),lLLlNOlS.

SPECIFICATION forming' part of Letters Patent No. 793,993, dated July4t, 1905.

Application tiled July fl, 1904;. Serial No. 215,718. i

To will whom/7175 771ml/ oon/ecru:

lle it known that l, (li-nolion B. Dni'nnN, a citizen ot the UnitedStates, and. a resident ot the city oit Chicago, county oit Cook, anni.State o't lllinois, have invented (certain new and nseitnlIn'ilnovenients in Tires 'tor Vehiole-iheelsg and l ilo hereby declarethat the following a t'nll, clear7 and exact clescriptien ot the saine,reference being ha il to the acconnninying drawings, and to the lettersoit reterence marked thereon,whioh torni a part ol this spceilioation.

'lhis invention relates to tires 'tor vehiclewheels, anil inorcparticularly to a rubber tirc provillcl with retaining` nieans ailaptetlto secnrc thc tire til-inl)T in place anil alloriling,r lnaxinnnnresiliency of the sanne.

(it the tires heretofore oonstrnctial in which transverse wires or harsot any hind or nature have been elnployeil in connection with siilebinding-wires the binding-wires have nsnally restcil in'innaliatcly nponthe, cross wires or bars. then so constructed, the slight relativeniovenlcnt ot saiil crosswires anil siile landing-wires, together withthe erit or tlirt [intling its way to the points ot militant, soon entsott' or wears away saidv wires sntlieiently tor the tire to ooine ottthe r'nn. VIn soine cases snoh tires are easil)7 rollcil 'troni the riinowingto thc inward pressure o't the siile. hiinling-wircs npon theextremities ot' the closs-wires7 which teinl to spring thc cn ls ot the,cross\\'il'cs inwardly, while ther nlhhllc ot thc saine hows ontvarillvwith thc rnhher beneath thc saine. 'this tendencyv is always presentwhere c|oss wires anil side binding-wires are liseth anil thc lgreatlateral stress oceasioneil b v tnrning1 cornersl rapiilly and h v thcinequalities ot thc l'oail is sntlieicnt to roll most such tires Atronithc channels cvcn when til'st applicil. 'llhe tcnilenov is ot conrscincreascll b v continnml nsc ot thc tires weakening' they cross* wires.

'll'he object ol" this invention is lo l'noviile a tire Awith crosswires or hars enihcthlcal therein :nlapteil to receive. ainl support thestress o'lI tl i sifle binding-wires, but :troni which said sidebinding-wires are separated by a resilient pail ot the tire material.

lt is also an object ot' the .invention to provide a construction snehthat whatever the inwardv stress at the ends o' the cross-hars springingor bowing the cross-wires by the application oi the side binding-wireseven nntler the most severe `lateral stress is entirely obviatetl,while. niaxininln resiliency o't the strnctnre is nniintainecl.

ltis a Yfurther object oit in v invention to provide a constructionwhcrebv tires oit the class described can be sccnreil to vehichL wheelsha ving V[lat tires olf the ordinary hind, dispensingI with thc channelshcretoliorc nseil.

The invention consists in thc niattcrs hercinaftter (lescriheh antlnioro tnllv pointed ont and iletinetl `in the appended elailns.

ln the flraivinn's7 Figure l is ay 'fragmentary sille elevation showingrthe tire` channel, anil sith retaining-wires broken obliqnelly. Fig. 2is a transverse section ol. the channel with the tire-strip thereiln hatthe siile hindingwvircs olnitteil. liig. 3 is a similar View showing thesiilc binding-wires in place. Fig. fl; is an enlarged 'fragmentaryiletail ot the channel and the tire-strip therein. Fig. a transversesection illustrating the ai plication oil? 1n-v invention to a flattire. YFig'. l is similar view showing; the tire-strip se cnreil inplace. Fig'. T is a perspiaftivc Vview o'l' onc o'l the transverseliars. Fig. tl is a sectional view similar to Vig. L). but showing`another Ytorni ot the crosshar. Fig'. t) is a perspective view ol thecross-har shown in Fig'. ti.

)is shown in saiil ilrawings, indicates thc usual channel ailaptetl tobe sccnreil to the. rini o'l' a vchiclc-whcel anti proviileil withoiitwariltv livcrg1in}u or Haring' [langes c in the nsnal inaiincr.ticatctl within said channel is the tire-strip lh which. as shown,provhlcil with a hase portion l), which lits elosely in :nhlapproxiinatcl)Y [ills the eilannel anti an ilpwarilliv-extending treatlportion which may he o'l any convenient shape or conformation incross-station. As shown, saiil tire-strip at a point approximatelycorresponding with the top of the side flanges a curves inwardly,affording a shoulder of rubber' 7)', which extends the entire length ofthe tire-strip on each side of the same and below which, arranged shortdistances apart and extending transversely in the base portion of thetire, are metallic cross-bars C, which, as shown, though notnecessarily, are flattened, affording a relatively broad upper and lowerface. Each of said cross-bars at its ends is provided with a downwardextension or foot c, which isshaped to lie approximately parallel withthe inner faces of the channel and to afford a sufficiently broadbearing-face or under surface to avoid cut-- t-ing the thin layer of thetire-base beneath the same, which thus affords a resilient support forthe cross-bar within the channel. Said feet or ends c are provided ontheir inner sides with shoulders, which are bedded inthe material ofwhich the tire is constructed and act to prevent movement of said sidebars with respect to the tire, thus avoiding a frequent cause oftearing. As shown, a plurality of layers of canvas D or other suitablematerial are vulcanized on the base of the tire, and an outer coveringTof canvas f7 extends around the base portion of the tire to theshoulders of rubber 7), concealing the ends of the cross-bars.

As shown in l to 4, inclusive, the tires are retained in place byretainingbands or side binding-wires E, which engage on the shoulders 7)within the flanges of the channel. Frequently, however, it is desirableto secure a rubber tire on the wheels provided with flat tires insteadof channels. For this purpose the tire-strips are constructed as beforedescribed and the transverse bars C are provided with approximatelyright-angled, downturned ends c2. An annular clamping-band F is securedon each side of the wheel-rim by means of bolts Gr and projectsperipherally beyond the same, and at its periphery is provided with aninwardly directed upwardly inclined rounded flange adapted to engageabove the shoulders 7) of the tire-stri p, as shown in Figs. 5 and G.YWhen the annular clampingbands F are drawn inwardly by means of saidbolts, said flanges engaging over the, shoulders 7) are drawn radiallyinward. into positive bearing upon the flat tire A.

The operation is as follows: Then used in a channel-rim, as shown inFigs. l to -l-, inclusive, and in Fig. S. the tire-strip B is fittedtheerto. approximatelyY filling the channel. Then the side retainingbands or wires E are secured in place. the rubber forming the shoulder7) is greatly compressed, and the pressure is communicated to thetransverse bars C and to the very thin layer of rubber and the canvasbelow the feet c, the

downturned ends of said bar tending to slightly compress the same andlto communicate the greater part of the pressure to the bottom of thechannel. Inasmuch as the inner approximately parallel faces of saiddownturned ends or feet bear against the rubber included between thesame, these aid. in stilfening the cross-bars, and there is no tendencyto bend or spring the cross-bars by said pressure. rllhe downwardpressure of the binding-wires upon said bars also brings the flattenedends of the cross-bars, which are shaped complementally with thelinclination of the side flanges, into close relation, though notnecessarily into binding pressure upon said flanges, thus preventing anymovement of said bars or displacement thereof in the tire-strip, such assometimes causes the tire to tear.

ln the construction illustrated in Figs. S and 9 the cross-bars areformed of flattened rods or wires C, each of which is bent at the endsto afford a downturned foot c, on the inner end of which is aninwardly-directed hook c, engaging in the tire-base just above thereinforcing base layers D. This construction affords a broader base forthe feet and vet permits the rubber to bend in said hooked ends, thusaffording a double hold at each end of said cross-bars in the tirestrip.It will also be seen that the canvas strip D at the base of thetire-strip and the layer of canvas (7 inclosing the same and extendingupwardly on the tire to the shoulders 7) act to greatly stiffen the baseof the tire, and being vulcanized to the tire prevent any tendency todraw away from the transverse bars when subjected to lateral stress.

In the use of the construction illustrated in Figs. 5 and G thetire-strip lies in position upon the usual steel tire A of the wheel,and the retaining or clamping members F are secured in place with theflanges thereof directed above and in engagement with thel shoulders 7)of the tire-strip. The nuts ou the bolts are then set up, drawing saidannular retaining members inwardly against the tire and drawing thetire-strip inwardly, thereby compressing the base of the tire andrigidly binding the same in place. lf preferred. a central longitudinalbinding-wire E may be used in this or in the construction beforedescribed.

The thickness of the layer of rubber beneath the downturned ends of thetransverse bars is exaggerated in the drawings for the purpose ofmaking' the illustration clearer', and ordinarily but a slight thicknessof the resilient material is used. ylVhen used, however, it affords adegree of resiliency beneath the feet c c2 or ends c of said bars,though the ends thereof are brought sufficiently close to the bottom ofthe channel to ICO IIO

rasees connnnnicate the pressure of the side retaining-wires thereto.

While l have described particular teatnres oli ctmstrnction, myinvention is capable oli embodiment in dilllerent ways, and either withside bindingl or central binding wires or both, as preferred. ltherefore do not desire to limit this application otherwise thannccessitzlted by the prior art and as stated in the claims, as obviouslymany details ol construction may be varied without departi ng trom theprinciples of my invention.

l claim as my inventionl. 'llhe combination with a vehicle-tire stripcomprising a strip of rubber shaped at its base to fit in atire-channel, of a shoulder extending longitudinally oit said tire-stripon each side, thereoll at the top ol.E the base portion, areiiilincing-base olf itabric or the like permanently secured to thebottoni olf the tire-strip, an investing liabrie inclosi ng the saineand extending to said shoulders, ltransverse bindingbars lying beneathsaid shoulders and a (plownturned toot at eachV end ot each barextending into close lrnfoximity with the reinln'cing fabric at the baseand atl'ording` a broad bearing thereon` the ends ot said bars having alayer oll rubber above and below the same. w

2. lhe combination with a. channeled rim ot a vehicle or the like, ot arubber tire-strip litted in said channel, a reintorcing-base of YFabricor the like on said tire-strip, a shoulder on each side the tire-stripat approximately the top of the channel., retaining means engaging oneach oit said shoulders and cross-wires arranged short intervals apartand disposed below said shoulders and each comlniising a balr extendingtrom side to side in the tire-base and provided with downturned ends orfeet approximately parallel with the sides ot the tire-base on theirouter sides, and at their bottoms atlording a broad bearing adjacent tobut slightly above the reintorcing-base.

3. Vllhe combination with a vehicle-wlaal. havingl a channeled rim oit'a tire-stri p comprising a tread portion and a base portion tilting saidchannel, a slmulder on each side the tire-strip at approximately lthetop ot the channel a central binding-wire in said strip transverse barsin said base below said shoulders. d(wliwardly-direet nl hooked ends onsaid bars directed to and bedded in said liiottom base portion alplurality ol layers oli tabl-ic on the base of said strip and a. stripoli tabric inclosing the same and extending to the top o'lE the rim.

-l-. rllhe coi'nbination with a` \\*ehiele-wheel oli a tire thereon,amiular elamping-bamls secured on ea eh side oli the tire and inwardlyand upwardly inclined lips or flanges on each ot said clam ping-bands, ati restri p having a base width. crnfresponding with that oli thewheel-tire, a shoulder thereon at approximately the height ot theinwardly-directed flanges or sl'ioulders on the clampingbands,transverse bars or rods bedded in the tire-base below said shoulders,inwardlyturned ends on each eross-bar all'ording a broad bearing-tace inthe bottom ot the tirestrip7 bolts extending through the wheel-rin'i andthe clamping-bands and acting to draw the same inwardly whereby saidlips or llanges on, the clamping-bands, act lto eompress the tiresbaseinwardly by engagement above said shoulders. Y

The combination with a vehicle-wheel et a tire thereon, annul arelampingbands secured on each side of the tire and inwardly and upwardlyinclined lips or llanges en. each oit said elamping-bands, a tire-striphaving a base width corresponding with that of the `wheel-tire, ashoulder thereiiin at approximately the height oit the inwardly-directedtlanges or shoulders on the clamping bands, transverse bars or rodsbedded in the tire-base below said shoulders, in\\ardlyturned ends oneach crossbar aftlording a broad bearing-:tace in the bottom o'll thetirestrip, bolts extending through the wheel-rim andA theelaniping-bamls and acting to draw the same .inwardly whereby said lipsor tlangos on the elanrping-bands act to compress the tire-base inwardlyby engagement above said shoulders, and a central longitudinalbinding-wire extending through the tread portion et the tire above thecross wires.l

G. ltn a tire tor vehicle-wheels, a tire-strip, transverse binding-wiresbedded therein, a downwaidly-directed end or foot on each end oit eachextending to near the bottom oit the strip and parallel with the sidesand attording broad inwardly-directed :faces be tween which a. part otthe tirestrip is engaged whereby downward pressure acts to conuiiressthe base transversely means adapted to compress said strip at the sidesand. center thereot and a 'Fabric beneath the strip and extemlingupwardly beyond the ends oli said binding-wires.

In testinmny whereol l have hereunto subscribed my name in the presenceot two subw scribing witnesses.

(illlUlttllG ll. DR'YDFN. lllitnesses (l. W. l'lniLs, vl. J.llflielwnmNn.

IOO

IOS

